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Transformer Hotspot Temperature Inversion Method and System Based on Streamline and Support Vector Machine

A technology of support vector machine and hot spot temperature, which is applied in the direction of instruments, computer components, character and pattern recognition, etc., can solve the problems of low accuracy of hot spot temperature inversion, slow calculation speed, lack of physical model basis for temperature characteristic quantities, etc. Achieve the effect of high precision, simple calculation and high efficiency

Active Publication Date: 2021-08-03
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the intelligent method, the selection of temperature features lacks a physical model basis, the accuracy of hot spot temperature inversion is not high, and the calculation speed is slow

Method used

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  • Transformer Hotspot Temperature Inversion Method and System Based on Streamline and Support Vector Machine
  • Transformer Hotspot Temperature Inversion Method and System Based on Streamline and Support Vector Machine
  • Transformer Hotspot Temperature Inversion Method and System Based on Streamline and Support Vector Machine

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Embodiment Construction

[0036] In order to illustrate the present invention and / or the technical solutions in the prior art more clearly, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.

[0037] figure 1 Shown is the specific process of transformer hotspot temperature inversion method based on streamline and support vector machine, which can be applied to hotspot temperature inversion of 10kV voltage transformer. The specific steps are as follows:

[0038] Step 1, design the training sample set.

[0039] Considering the environmental factors of the transformer as factors, the multi-factor and multi-level training sample set is designed by using the orthogonal method. In this em...

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Abstract

The invention discloses a transformer hotspot temperature inversion method and system based on streamlines and support vector machines, comprising: S1 using an orthogonal method to design a multi-factor and multi-level training sample set; S2 under the conditions corresponding to each training sample, Perform temperature field simulation on the transformer to obtain the temperature field distribution diagram; S3 calculates the streamline diagram corresponding to each training sample from the temperature field distribution diagram, selects the main stream from the streamline diagram, extracts the streamline temperature change curve from the main stream, and according to the streamline temperature Select the temperature measurement point from the change curve; S4 build a test sample set; S5 predict the position of the hot spot in the winding of the transformer according to the temperature field distribution map; S6 takes the test sample set as input, and uses the support vector machine to simultaneously measure the temperature distribution inversion. The invention has the advantages of simple calculation, high precision and high efficiency, and can be better applied to engineering practice.

Description

technical field [0001] The invention belongs to the technical field of transformer hot spot monitoring, in particular to a transformer hot spot temperature inversion method based on streamlines and support vector machines. Background technique [0002] As one of the most important equipment in the power system, the transformer has a large number and complex structure, which is directly related to the reliability and safety of power supply. The highest temperature reached by each component inside the transformer is the hot spot temperature, which is one of the important factors affecting the operating state, physical conditions and insulation life of the transformer. In order to ensure the safety and efficiency of transformer equipment in operation and avoid failures during operation, online monitoring of transformer hot spots is very important. [0003] The domestic and foreign transformer hot spot measurement methods mainly include direct measurement method and thermal sim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q50/06G06F30/27G06F30/23G06K9/62
CPCG06Q50/06G06F30/20G06F18/214
Inventor 阮江军龚若涵全妤
Owner WUHAN UNIV